Analysis of the delamination in drilling of particleboard

Published Date
Zeszyty Naukowe Politechniki Rzeszowskiej. Mechanika

2014 | z. 86 [290], nr 4 | 621--628

Title 

Analysis of the delamination in drilling of particleboard

Author 

Szwajka, K.

Wybrane pełne teksty z tego czasopisma: http://www.prz.rzeszow.pl/pl/zn/?page=wbmil

Warianty tytułu

PL

Analiza rozwarstwiania płyty wiórowej podczas wiercenia

Języki publikacji

 

EN

Abstrakty

EN

Particleboard is a wood based composite extensively used in wood working. Drilling is the most commonly used machining process in furniture industries. The surface characteristics and the damage free drilling are significantly influenced by the machining parameters. The thrust force developed during drilling plays a major role in gaining the surface quality and minimizing the delamination tendency. In this study eighteen durability tests of tools for different values of the analyzed cutting parameters were carried out. Based on the obtained results, the effect of cutting parameters of selected signals of axial force and cutting torque was found. Mathematical models using ANOVA, allowing to estimate the value of cutting forces was proposed.

PL

Płyta wiórowa jest kompozytem, którego podstawowym składnikiem jest drewno. Ma szerokie zastosowanie w przemyśle. Proces wiercenia to najpopularniejszy proces obróbki stosowany w przemyśle meblarskim. Siła osiowa i moment skrawania występujące podczas procesu wiercenia odgrywają ważną rolę w uzyskaniu odpowiedniej jakości powierzchni. W przeprowadzonych badaniach wykonano osiemnaście prób trwałościowych narzędzia dla różnych wartości analizowanych parametrów skrawania. Na podstawie wyników uzyskanych z przeprowadzonych badań określono wpływ wybranych parametrów skrawania oraz zużycia narzędzia na wartość siły osiowej i momentu skrawania. Zaproponowano modele matematyczne, wykorzystując analizę wariancji ANOVA, pozwalające oszacować opory skrawania.

Słowa kluczowe

PL

wiercenie   zużycie narzędzia   jakość powierzchni   płyta wiórowa laminowana  

EN

drilling   feed force   cutting torque   tool wear   laminated chipboard  

Wydawca

 

Oficyna Wydawnicza Politechniki Rzeszowskiej

Czasopismo

 

Zeszyty Naukowe Politechniki Rzeszowskiej. Mechanika

Rocznik

 

2014

Tom

 

z. 86 [290], nr 4

Strony

 

621--628

Opis fizyczny

 

Bibliogr. 14 poz., rys., wykr.

Twórcy

autor

Szwajka, K.

• Rzeszow University of Technology, Faculty of Mechanical Engineering and Aeronautics, 4 Kwiatkowskiego St., 37-450 Stalowa Wola, Poland , kszwajka@prz.edu.pl

Bibliografia

• 1. Berglund L., Rowell R. M.: Wood composites. [In:] R.M. Rowell (ed.): Handbook of wood chemistry and wood composites, CRC Press, Boca Raton 2005.
• 2. Darmawan W., Usuki H., Quesada J., Marchal R.: Clearance wear and normal force of TiN-coated P30 in cutting hardboards and wood-chip cement boards. Holz Roh Werkst, 66 (2008), 89-97.
• 3. Stewart H.A.: High-temperature halogenation of tungsten carbide cobalt tool material when machining medium density fiberboard. Forest Prod. J., 42 (10) (1992), 27-31.
• 4. Sheikh-Ahmad J.Y., Bailey J.A.: High-temperature wear of cemented tungsten carbide tools while machining particleboard and fiberboard, J. Wood Sci., 45 (6) (1999), 445-455.
• 5. Bridges R.: A quantitative study of some factors affecting the abrasiveness of particle board. Forest Prod. J., 11 (1971), 39-41.
• 6. Porankiewicz B.: Variation in composition of micro-grain cemented carbide and its impact on cutting edge wear during particleboard machining. [In:] Proc. 13th IWMS, Vancouver, Canada, 1997, 791-799.
• 7. Porankiewicz B., Gronlund A.: Tool wear-influencing factors. [In:] Proc. 10th IWMS, UC, Berkeley, USA, 1991, 220-229.
• 8. Porankiewicz B.: A method to evaluate the chemical properties of particleboard to anticipate and minimize cutting tool wear. Wood Sci. Technol., 37 (1) (2003), 47-58.
• 9. Sparks A.J., Taylor V.: Chip board machinability. Part 1: The effect of cut on cutter wear. Furniture Industry Research Association, 928/271/81 (1981).
• 10. Porankiewicz B.: Investigation of chemical wear of cemented carbide cutting edges by processing board materials. Project Report no. MR/USDA-95-219, 1998, 32.
• 11. Maloney T.M.: Modern particleboard and dry-process fiberboard manufacturing. Miller Freeman, San Francisco 1993.
• 12. Suchsland O., Woodson G.E.: Fiberboard manufacturing practices in the United States. Agriculture Handbook, no. 640, United States Department of Agriculture, 1986.
• 13. Kelly M.W.: Critical literature review of relationships between processing parameters and physical properties of particleboard. Gen. Tech. Rep. FPL-10, Forest Products Laboratory, Forest Service, US, Department of Agriculture, USA, 1977, 66.
• 14. Chen S., Liu X., Fang L., Wellwood R.: Digital X-ray analysis of density distribution characteristics of wood-based panels. Wood Sci. Technol., 44 (2010), 85-93.

Identyfikatory

 

DOI

 

10.7862/rm.2014.64

Identyfikator YADDA

 

bwmeta1.element.baztech-acd413b2-7fbf-41fa-959f-c9c4e82c96c5

For further details log on website :
http://yadda.icm.edu.pl/yadda/element/bwmeta1.element.baztech-acd413b2-7fbf-41fa-959f-c9c4e82c96c5

Wood decay associated with loggingwounds in Parashorea malaanonan

Published Date

November 2007, Volume 36, Issue 6, pp 565-572

First online: 

Title 

Wood decay associated with loggingwounds in Parashorea malaanonan

• Author 

• M. Sudin
• , S. Woodward
• , Su-See Lee
• , M. Pinard

• 
  

• Abstract 

• Wood decay associated with wounding in 40 trees of Parashorea malaanonan growing in Ulu Segama Forest Reserve, Sabah, Malaysia, was estimated 7 years after logging in compartments where reduced-impact (RIL) or conventional (CL) logging methods were used. Trees of ≥30 cm diameter were felled and dissected to determine the volume of log occupied by decay. Scrapes were the most common types of wounds sampled, followed by basal wounds, broken tops or branches and butt log wounds. All wounded trees examined had decay, whereas only 25% of trees ×30 cm diameter at breast height of this species in the reserve typically had stem decay. Median defect to gross volume of tree was ∼5%, and was similar for trees in RIL and CL areas. However, defect volume per wound was greater in trees from CL areas relative to RIL areas, in particular, mid-bole wounds had greater defect volume in trees in CL areas as opposed to trees in RIL areas. The mean rate of decay was estimated at 68 cm3 of timber per year for each cm2 of wound area. Defect volume was positively correlated with wound size but was unrelated to tree size. P. malaanonan is vulnerable to wood decay following wounding; therefore, in eastern Sabah forests, where this species comprises a large proportion of the commercial volume, efforts to reduce incidental damage to residual stems during harvesting operations are an important component in protecting the growing stock.

  Additional keywords

  dipterocarp forest selective logging wound type

• 
  

• References 

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For further details log on website :
http://link.springer.com/article/10.1071%2FAP07060

Challenges Impeding Competitiveness of the Wooden Furniture Manufacturing Industry: The Case of Furniture Industry in Sarawak, Malaysia

Published Date

December 30, 2010

Australian Journal of Basic and Applied Sciences, 5(9): 1135-1145, 2011 

Author 

Kwang Sing Ngui 

Swinburne University of Technology

Anand Agrawal 

Asian Institute of Management, Manila, Philippines

Jan P. Voon 

Zhongshan University - Department of Economics

Abstract:      

Sarawak, being the largest state in Malaysia, is a major producer of tropical timber and timber products in the world. However, despite being blessed with abundant timber resources, it has a relatively small wooden furniture manufacturing industry, with insignificant exports compared with other timber-exporting countries. The present study sets up to identify the possible impediments to the growth of the furniture industry. Qualitative data was collected from different stakeholders of the furniture manufacturing industry via unstructured in-depth interviews. Using Porter’s Diamond of National Advantage framework, different problems and challenges posed by factor conditions, related and supporting industries, demand conditions, firm strategy and government were analyzed. Factor conditions concern the supply and productivity of factors of production. Sarawak furniture manufacturers face a shortage of timber supplies, higher transportation and utility costs, shortage of skilled manpower and difficulty in securing financing for business expansion. These have undermined the competitiveness of the manufacturers, relative to their counterparts in Peninsular Malaysia. Supporting industries are underdeveloped, resulting in poor supply chain integration. Most upstream timber producers are geared towards the export markets while furniture component parts have to be imported. The domestic furniture market is small and thus could not sustain the industry on a large scale. Consequently, furniture manufacturers lack sufficient capital and scale economies to adopt new manufacturing technologies. The problems faced by furniture manufacturers are further compounded by rigid government policies and cumbersome bureaucratic processes, many of which have disadvantaged small furniture manufacturers. Anti-tropical timber campaigns in importing countries pose a further threat to the export viability of Sarawak wooden furniture. The paper ends with a discussion of the role that the state government can play in facilitating the growth of the industry. It distinguishes between the neoliberal and structuralist perspectives of government intervention, highlighting the absence of studies on the development of tertiary wood-processing industries in the state.

Number of Pages in PDF File: 11

Keywords: Malaysia wooden furniture industry, Competitive advantage, timber

For further details log on website :
http://papers.ssrn.com/sol3/papers.cfm?abstract_id=1951631